First Look: Borealis’ Wider, Thru Axle, XX1 Fatbike Hubs
A perfect compliment to their forthcoming Yampa carbon fatbike, Borealis has just revealed their new fatbike FH1 hubs which include a number of firsts. We’ve heard the new standard for fatbikes may increase in the rear to 190mm, which is exactly what Borealis is using. Combine that with one of the first front specific, 135mm symmetrical, 15mm thru axle hubs and you have the recipe for an extremely stiff bike with room for the biggest tires around.
Details on the new hubs after the break.
In order to keep the hubs as versatile as possible, not only is the front hub convertible between QR15 and standard quick release, but the free hub is convertible between a standard 9/10 and XX1 compatible XD driver. The conversion can be done on the rear hub with only 2, 5mm allen wrenches while the front hub conversion needs no tools at all.
The freehub on FH1 hubs includes a 6 pawl mechanism with a 24t drive ring for an impressive 144 engagement points.
The front hub uses front disc tab spacing, meaning a front disc brake adapter will be needed if it’s not used on the post mount Yampa fork. FH1 hubs roll on high quality sealed bearings front and rear, with the rear a standard 4 bearing design – two in the body, two in the freehub. Even with how wide the hubs are, they are still impressively light at 193g for the front and 359g for the rear. FH1 hubs will be available in both black and red anodized finish with laser etched Borealis graphics, both only in 32 hole drillings. The hubs will retail for a surprisingly low $349 per set.